Gross Reservoir Expansion

AMTS with GeoCloud Box

Projects ProjectsRecentSettlementExcavationsStructuresWalls & SlopesInfrastructureBridgesTunnelsRailVibrationDustConsolidationPiles Gross Reservoir Expansion The Project Denver Water’s Gross Reservoir Expansion Project will add 131 feet to the height of the dam, triple the volume of the reservoir, and convert the original concrete gravity structure to a concrete arch structure that can support the expanded capacity. See the video below for more…

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Texas Capitol Complex

AMTS Texas Capitol Complex phase 2

Projects ProjectsRecentSettlementExcavationsStructuresWalls & SlopesInfrastructureBridgesTunnelsRailVibrationDustConsolidationPiles Texas Capitol Complex Expansion Capitol Complex Phase 1 Phase 1 included construction of  two state office buildings and a five-level underground parking garage topped with a landscaped pedestrian mall. Phase 1 required an extensive support of excavation program. The excavation footprint exceeded 10 acres with an average depth of 60 feet…

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Spokane River Bridge

Programming AMTS to monitor piers and abutments

Spokane River Bridge The BNSF Spokane River Bridge project involves construction of a new rail bridge adjacent to the existing bridge. Geo-Instruments is monitoring the existing bridge for potential impacts from the construction, which includes vibratory pile driving for a temporary pile-supported work trestle. GEO deployed three automated monitoring systems that separately report displacements, vibration,…

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Track Monitoring – Chicago

Zach Bocias Chicago Area Manager

Project Types ProjectsRecentSettlementExcavationsStructuresWalls & SlopesInfrastructureBridgesTunnelsRailVibrationDustConsolidationPiles Automated Track Monitoring – Chicago This AMTS system was used to monitor for potential settlement and lateral movement of twin rails during jack boring operations beneath the rail embankment. The project duration was 10 months. The AMTS was mounted on a tower for good sight lines to rail-clip prisms installed…

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6th Street Viaduct

Bridge superstructure - 6th Street Viaduct

6th Street Viaduct GEO-Instruments worked with Skanska and Cowi during the construction of the new multi-arch 6th Street Viaduct in Los Angeles. The 3500-foot long viaduct crosses over 16 lanes of highway, 18 sets of railroad tracks, the LA river, parks, buildings, and sidestreets. The bridge deck was initially supported by formwork. After the arches…

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Track Monitoring Test

Track Monitoring Technologies Test

Projects ProjectsRecentSettlementExcavationsStructuresWalls & SlopesInfrastructureBridgesTunnelsRailVibrationDustConsolidationPiles Track Monitoring Comparison Test Shape array – red AMTS prisms – orange Tiltmeters – green In-Place Inclinometer – blue GEO-Instruments has posted a paper that discusses three track monitoring technologies. The three technologies are: AMTS, Shape Arrays, and Tiltmeters. Will there be a clear winner? AMTS (automated total stations) monitor the…

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SOE in Seattle

AMTS mounted on Utility Pole

Monitoring SOE in Seattle GEO-Instruments is monitoring the support of excavation system at 701 Dexter in Seattle. The deep excavation makes room for a 4-level underground parking garage that will be topped by a 10-story office building. At the start of the project, the 701 Dexter building was still standing. GEO used a drone to…

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Coastal Cliff Erosion

SAAX in Place

Projects ProjectsRecentSettlementExcavationsStructuresWalls & SlopesInfrastructureBridgesTunnelsRailVibrationDustConsolidationPiles Coastal Cliff Erosion Threatens Road Coastal erosion threatens the safety of a road leading to an industrial site. At this location, the cliff has advanced inland to within 20 feet of the road. A 600-foot horizontal shape array, piezometers, and vibration monitors were installed to provide continuous monitoring. The cliff has…

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Waterfront Tunnel Alexandria

GEO's Alexandria Team

Waterfront Tunnel – Alexandria Virginia The Herrenknecht TBM used by AlexRenew, Alexandria Virginia’s water treatment service. The TBM was named for Hazel Johnson, one of America’s leading pioneers for environmental justice. Hazel next to the launch shaft. After launching, Hazel proceeded to excavate the 2-mile long Waterfront Tunnel at an average depth of 100 feet.…

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West Point CEAC

AMTS at West Point

West Point CEAC West Point Military Academy is adding a Cyber & Engineering Academic Center as seen in this architect’s rendering. The start of construction involved blasting rock to make room for the new structure. GEO deployed 30 automated vibration monitors to monitor the effects of the blasting. Geophones were installed directly onto the structures…

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